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From: Vasiliy Kulikov <segoon@openwall.com>
To: Ingo Molnar <mingo@elte.hu>, solar@openwall.com
Cc: Andrew Morton <akpm@linux-foundation.org>,
	kernel-hardening@lists.openwall.com,
	Randy Dunlap <rdunlap@xenotime.net>,
	"Eric W. Biederman" <ebiederm@xmission.com>,
	"Serge E. Hallyn" <serge.hallyn@canonical.com>,
	Daniel Lezcano <daniel.lezcano@free.fr>,
	Oleg Nesterov <oleg@redhat.com>, Tejun Heo <tj@kernel.org>,
	linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-security-module@vger.kernel.org
Subject: Re: [RFC] ipc: introduce shm_rmid_forced sysctl
Date: Fri, 1 Jul 2011 15:35:33 +0400	[thread overview]
Message-ID: <20110701113533.GA19945@albatros> (raw)
In-Reply-To: <20110701112534.GG20990@elte.hu>

On Fri, Jul 01, 2011 at 13:25 +0200, Ingo Molnar wrote:
> Furthermore, if testing shows that this is not actually breaking 
> anything in a serious way we could also in theory simplify the patch 
> and just make this the default behavior with no runtime ability to 
> switch it off.

I'm afraid it's impossible.  From -ow readme:

"Of course, this breaks the way things are defined, so some applications
might stop working. In particular, expect most commercial databases to
break. Apache and PostgreSQL are known to work, though. :-)"

http://www.openwall.com/linux/README.shtml

But as it was written in days of Linux 2.4.x, the situation could have
changed.  A desktop system seems to work.


Thanks,

-- 
Vasiliy Kulikov
http://www.openwall.com - bringing security into open computing environments

  reply	other threads:[~2011-07-01 11:35 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-06-22 15:25 [RFC] ipc: introduce shm_rmid_forced sysctl Vasiliy Kulikov
2011-06-22 16:03 ` Randy Dunlap
2011-06-29 22:14 ` Andrew Morton
2011-06-30  9:21   ` Vasiliy Kulikov
2011-06-30 13:08     ` Vasiliy Kulikov
2011-07-01 11:25   ` Ingo Molnar
2011-07-01 11:35     ` Vasiliy Kulikov [this message]
2011-07-01 12:04       ` Ingo Molnar
2011-07-01 14:18         ` Alan Cox
2011-07-03 19:38           ` Ingo Molnar
2011-07-03 21:25             ` Alan Cox
2011-07-02 16:50       ` Solar Designer
2011-07-02 17:31   ` Solar Designer
2011-07-04 15:08 ` Oleg Nesterov
2011-07-04 15:36   ` Vasiliy Kulikov
2011-07-04 15:44     ` Oleg Nesterov
2011-07-04 16:06       ` Vasiliy Kulikov

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